Means for imparting rotary reciprocating motion.



'N.a5s,44o. PATENTEDMAY14.1907.

P. T.l coPFIBLD.

MEAS POR IMPARTING ROTARY REGIPROGATING MOTION.

Arrmon'lon FILED snm'. ze. 190e.

2 SHEETS- SHEET 1.

@a/Ff@ Guam UNITI-ID STATES PATENT OFFICE.

rE'rEiz T. COFFIELD, oF DAYTON,V OHIO. p y MEANS FORIMPAnTlNc-s. no1-Am nl'clenocA-rme `M01-ION.

No. e53,44o.

Specication ofLettere Patent.-

Patente'd may 14, 1907. y

Appleman sled sepamberze, 190e. serai No. 336,366.

' To all whom it may concern.

Be it known that I, IE'rnn T, COFFIELD, a citizen of the United States, residing atDayton, in the county 'of Montgomery and State of Ohio, have invented certain new and useul Improvements in Means for Imparting Rotary Reciprocating Motion to Washing- Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it apperta'ins to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of referencev marked thereon, which form a part of this s eciiication.

lThis invention re ates to means for imparting rotary-reci rocating motion to a tub xor receptacle, such or example, as a washing machine, during the operation of washing clothes. The motion `is transmitted to the tub or receptacle from any desirable source of power, such for example, as a motor, and the intervening mechanism between the m0- tor, and the receptacle or tub comprises the invention.

The object of said invention is to provide means for transmitting the motion from the motor to the tub or vessel and to relieve the motor mechanism of the sudden jars or strain. incident to the reversal of the movement of said tub lor rece tacle. It will be understood that the weight of the tub or receptacle due to the contents therein, increases the strain or jar when motion is reversed, to a great extent, and that in order to relieve the driving mechanism of such strain, the roper mechanism is 4,provided which will allow a continued limited movement of the tub or vessel due to momentum, after the driving mechanism has reached the limit of its movement in the reverse directions. In other words, the tub or vessel has some independent motion after the driving mechanism as reached the limit of-its movement, and owin to this continued movement of the vesse or tub, the driving mechanismmust be relieved of the strain incidental thereto.

Preceding a more detailed description of the invention, reference is made to the accompanying drawings, of which- Flgure 1, is a side elevation of the ap aratus complete, parts of the frame-work being shown in section. Fig. 2, is an enlarged plan view of a part of the apparatus with the tub or rece tacle removed. Y Fig. 3, is a detailed view o the lock socket connection through which the tub or receptacle' is connected with the motor gearing, and through which the tub may have continued movement due to momentum. Fig. 4, is a vertical sectional view on the line of Fig. 2.

In a detail description of the invention,

similar reference characters indicate correspending arts;

A suita le water vmotor nish the driving power. of the motor does not enter into the present invention, therefore, it will not be described in detail. Such water motor may receive its supply `from an suitable source, such as Ithe city water wor s. The piston rod 2 of the motor-carries on its outer end a'rack 3 which meshes with a gear wheel 4 of suitable di ameter which it drives; this gear wheel 4 turns loosely on an upright shaft 5 and .rests upon abearlng or standard 6, the latter being supported in the frame-work of the apparatus. Rigidly secured to the upper face of the gear Wheel 4 is a bracket consisting of two arms 7--7 extending from1 a hub 8 and terminating inv upright portions the hub 8 contains an aperture through which the shaft 5 extends; said shaft turns loosely in said hub. The said shaft 5 also extends loosely through aportion of the frame-work 10 which constitutes a bearing for maintaining it in a true '1 is utilized to fur- -perpendicular position; the shaft thence exjtends through a hub 16 to which it is secured4 by a pin 15 extending from this hub 16 is a series of arms 17, the whole constitutinga spider which is attached to the bottom of the tub or receptacle 18 and in the center of the same. Rigidly attached upon the upper side of the cross frame 10 is a stationary bearing 1l between which and the lower end of the hub 16 there is a ball bearin 13 inclosed between suitable hard steel'p ates attached to the parts 11 and 16.

Connected at one end to each of the arms 7-7 are spiral springs 14 which extend inwardly to fit over trunnions 12 projecting from opposite sides of a clutch ring 19. The interior projections 20 of this clutchA inter lock with. the opposite recessed sides of the spider hub 16so that movement is imparted The construction IOC to the tub or receptacle through this clutch from the bracket arms 7-7 the hub bearingy upon the ball bearing 13-13. As will be seen from Fig. 4, the clutch ring 19, ,rests upon the upper surface of the bearing' piece 11. The wash tub or receptacle 18 is rotated from the arms 7 7, which, as before IIO power arms through W 'eh motion isl trans- 19 and thence to mitted to the clutch ring the wash tub or-receptacle. 4

The momentum of the tub 18, after the driving rack 3 has reached its limit in either direction, will have tl.- effect of continuing the rotation of said receptacle; in order to re-v lieve the power-transmitting devices of the strain due to the forceof this momentum, the spiral springs 1414 serve as 'elding stops to receive the strain due to suc momentum. These sprin s will expand and will move out of the'true ine at such times, as is shown in Fig. 2, and will thus relieve the driving mechanism of the strain. In other words, when the limit of movement in either direction, of the gear wheel4 and arms '7-7 is reached, the springs 111-14 will be directly acted u on to yieldingly stop the momen tum of t e tub.

The o eration of the apparatus is brieliy describe as follows: Water is admitted to the motor under pressure to drive the piston and to impart reciprocating movement to the rack 3 through the intervening Vpiston rod 2 the rack im arts similar movement to. the tub or vesse 18 through the arms 7` which are united to the spur wIieel 4 and the springs 14, which are connected to -the rojections 20 of the clutch ring 19, said cluteli interlocking with the spider hub 16.

I claim as my invention:

1. In means for imparting rotary-recipro# eating motion to a receptacle such as a wash ing machine, the combination, of a spider attached to the bottom of said receptacle, a bearing for the hub of said spider, 'a clutch engaging said hub, a driving gear, a bracket extending Vfrom said driving ear,V and resilicnt .connections between said bracket and said clutch, whereby movement is imparted to said receptacle, and means for rotating said Vgear wheel in opposite directions.

2. In means for imparting rotary-reciprocating motion to a reeeptacle'such as a wash ing machine, the combination, of a driving gear, means for imparting rotary-reci rocating movement to said gear, a bracket Xed to and extending from said gear, and connections between said bracket and said receptacle comprising a hub upon which the receptacle is supported, a clutch engaging said hub, and spiral springs engaging said clutch and the bracketextending from the driving gear.

3. Inmeans for vimparting rtary-reclproeating motion to a receptacle such asa washing machine, the y gear, means for imparting rotary-reciprocatcombination, ofl a driving."

lng motion to said' gear, a hub upon which said receptacle is mounted, and resilient connections, a bracket extendingfrom the driving gear and said hub, said resilient connections being between said bracket and said hub, whereby means are provided for impartingto the receptacleniovement similar to those of the driving gear, and for permitting further movement of the receptacle due to the momentum thereof.

, 4. In'means for imparting rotary-recipro-- eating motion to a receptacle such as a washing machine, the combmation, of a hub attached to the bottom of said receptacle, an anti-friction bearing for said hub, a clutch ring interlocked with said hub, a driving gear, means for imparting rotary-reciprocatlng movement to said gear, bracket arms eX- tending from said gear, and resilient connections between said` bracket arms-and the' clutch ring,- whereby meansare provided for imparting to thereceptaele movement similar to that of the driving gear, and for ermittin the ladditional movement of sai `receptac e due tothe momentum thereof.

5. In means for imparting rotary-reciprocating movement to a receptacle such as a washing machine, the combination, of an anti-friction bearing vfor said hub, a clutch ring interlocked wit said hub, a shaft pinned yto said hub, a driving gear, a bracket attached to said drlvlng gear and into whichl said shaft is loosely projected, means for imparting to said gear rotary-reciprocating movement, and spiral springs connecting the clutch ring at opposite sides to said bracket, whereby movement is imparted to said rccep 'tacle similar to that of the driving gear,and

means are provided for allowing furtherv movement o the receptacle due to the momentum thereof.

In testimony whereof I aHix my signature, in presence of two witnesses.

C. M. THEoBALD, R. J. "MCCARTYL 

